| 摘要 |
The present invention discloses an apparatus and method for distributing channel key data to an endpoint device. In one example, the present invention provides channel key data to at least one endpoint device prior to the endpoint device being tuned to at least one channel associated with the channel key data. The endpoint device is then informed of the expiration time of the channel key data and is subsequently, upon request, provided the replacement channel key data on a optimized basis (e.g. randomized or utilizing some other optimization algorithm) prior to the expiration time of the original channel key data.
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